San Francisco is getting a brief taste of spring-summer crossover weather today, waking up to mild, mostly cloudy skies, temps in the low 60s, and a light southwest breeze. Inland neighborhoods should warm into the 70s this afternoon before a cooling trend settles in later this week. If you are headed outside, today is your window for dry, warm conditions. Just keep a layer handy near the water and an eye on the midweek forecast.
Afternoon Warmth and Onshore Breeze
Highs should reach near 75°F across much of the city, with some inland spots edging higher as the marine layer breaks up this afternoon. West-southwest winds around 2 to 8 mph will turn more solidly onshore later in the day, trimming temperatures along the immediate waterfront, according to the National Weather Service.
Rain Returns Tuesday Through Thursday
A weak disturbance slides through tonight until tomorrow, bringing a chance of light rain and a more likely chance of scattered showers Tuesday and Wednesday. Rain totals look modest, generally under one tenth of an inch for most city neighborhoods, with up to about 0.25 inches possible in the coastal mountains. Expect hit-and-miss wet periods rather than a full-day washout. Forecasters at the National Weather Service are also flagging a cooling trend into midweek as these systems move through.
Boaters, Take Note
Conditions offshore get rougher later in the week. The National Weather Service warns that northwest winds could ramp up to near-gale strength and seas may build to 10 to 12 feet, a setup that can turn hazardous for small craft. Mariners are urged to steer clear of exposed waters and double-check the latest small craft advisory from the National Weather Service before heading out.
Weekend Outlook
Once the midweek systems clear out, drier air builds in and temperatures should rebound, with highs climbing back into the low to mid 70s by Friday and into the upper 70s on Saturday for a mostly pleasant weekend. If you have events scheduled between Tuesday and Thursday, keep checking for forecast updates, as the timing and coverage of showers could still shift a bit.
